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a significant drop in pressure indicates the filter media is nearing capacity
Easy-to-Use: No special equipment is needed
The beneficial soil microbes combine symbiotically with the plant to enhance nutrient and water uptake
Super strong and tough
Low energy usage
Air Bear 20x25x5 (4 7/8) Replacement 266649-102 MERV 14 Air Filters 2 Pack propagation trays a significant drop in pressureImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 3 8 and 5 1 4 inch depth filters,
